55864877846855 has 64 divisors (see below), whose sum is σ = 85559607244800. Its totient is φ = 34712878233600.

The previous prime is 55864877846837. The next prime is 55864877846867.

55864877846855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55864877846855 - 2²⁸ = 55864609411399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1106087 + ... + 10627943.

It is an arithmetic number, because the mean of its divisors is an integer number (1336868863200).

Almost surely, 2^{55864877846855} is an apocalyptic number.

55864877846855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55864877846855 is a deficient number, since it is larger than the sum of its proper divisors (29694729397945).

55864877846855 is a wasteful number, since it uses less digits than its factorization.

55864877846855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9522205 (or 9522191 counting only the distinct ones).

The product of its digits is 72253440000, while the sum is 86.

The spelling of 55864877846855 in words is "fifty-five trillion, eight hundred sixty-four billion, eight hundred seventy-seven million, eight hundred forty-six thousand, eight hundred fifty-five".